feat(task): support updating deps in task update

Amp-Thread-ID:
https://ampcode.com/threads/T-79499d9e-f4f4-40de-893c-524c32a45483
Co-authored-by: Amp <amp@ampcode.com>

3 files changed, 24 insertions, 6 deletions

diff --git a/.tasks/tasks.jsonl b/.tasks/tasks.jsonl
index d92021c..7803aba 100644
--- a/.tasks/tasks.jsonl
+++ b/.tasks/tasks.jsonl
@@ -164,9 +164,10 @@
 {"taskCreatedAt":"2025-11-21T22:31:20.872934097Z","taskDependencies":[],"taskDescription":null,"taskId":"t-rWblzNdp4.3","taskNamespace":null,"taskParent":"t-rWblzNdp4","taskPriority":"P2","taskStatus":"Done","taskTitle":"Implement smart base branch selection in Worker","taskType":"WorkTask","taskUpdatedAt":"2025-11-21T22:36:36.614180518Z"}
 {"taskCreatedAt":"2025-11-21T23:01:48.224051611Z","taskDependencies":[],"taskDescription":null,"taskId":"t-rWbnAjCJH","taskNamespace":null,"taskParent":null,"taskPriority":"P2","taskStatus":"Done","taskTitle":"Update start-worker.sh to use Haskell agent","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T01:34:02.545292575Z"}
 {"taskCreatedAt":"2025-11-22T01:34:07.407341455Z","taskDependencies":[],"taskDescription":"Omni/Bild.hs:776 has a TODO: wrapper should just be removed, instead rely on upstream nixpkgs builders to make wrappers. This simplifies the codebase by removing manual bash script generation.","taskId":"t-rWbMpcV4v","taskNamespace":"Omni/Bild.hs","taskParent":null,"taskPriority":"P2","taskStatus":"Done","taskTitle":"Remove manual wrapper generation in Omni/Bild","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T03:21:49.357422745Z"}
-{"taskCreatedAt":"2025-11-22T01:34:12.233596517Z","taskDependencies":[],"taskDescription":"Implement a metrics view in the Admin dashboard (Biz/PodcastItLater/Admin.py). Show total users, active subscriptions, and recent submission counts. Ref: Biz/PodcastItLater/DESIGN.md","taskId":"t-rWbMpxaBk","taskNamespace":"Biz/PodcastItLater.hs","taskParent":null,"taskPriority":"P2","taskStatus":"InProgress","taskTitle":"Implement metrics view in Admin dashboard","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T03:10:06.641517277Z"}
+{"taskCreatedAt":"2025-11-22T01:34:12.233596517Z","taskDependencies":[],"taskDescription":"Implement a metrics view in the Admin dashboard (Biz/PodcastItLater/Admin.py). Show total users, active subscriptions, and recent submission counts. Ref: Biz/PodcastItLater/DESIGN.md","taskId":"t-rWbMpxaBk","taskNamespace":"Biz/PodcastItLater.hs","taskParent":null,"taskPriority":"P2","taskStatus":"InProgress","taskTitle":"Implement metrics view in Admin dashboard","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T03:54:20.066497502Z"}
 {"taskCreatedAt":"2025-11-22T01:34:19.451799517Z","taskDependencies":[],"taskDescription":"Update Omni/Agent/start-worker.sh to invoke the new Haskell-based agent binary ('agent start <name>') instead of running the legacy bash loop. Ensure it still sets up the environment correctly. The agent binary handles the loop internally.","taskId":"t-rWbMq1snX","taskNamespace":"Omni/Agent.hs","taskParent":null,"taskPriority":"P2","taskStatus":"Done","taskTitle":"Update start-worker.sh to use Haskell agent","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T01:57:09.161716208Z"}
 {"taskCreatedAt":"2025-11-22T02:13:44.805917094Z","taskDependencies":[],"taskDescription":"Modify Omni/Agent/Git.hs to proactively clean up stale rebase/merge states before attempting operations. The worker should attempt 'git rebase --abort' (ignoring errors) before syncing to prevent 'already rebase-merge' errors.","taskId":"t-rWbP06f2O","taskNamespace":null,"taskParent":null,"taskPriority":"P2","taskStatus":"Done","taskTitle":"Make worker agent robust to stale git states","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T02:14:40.413090556Z"}
 {"taskCreatedAt":"2025-11-22T02:26:44.02456019Z","taskDependencies":[],"taskDescription":"Modify Omni/Agent/Git.hs to check for .git/rebase-merge or .git/rebase-apply before running git rebase --abort. This avoids blindly running abort commands.","taskId":"t-rWbPQPLps","taskNamespace":null,"taskParent":null,"taskPriority":"P2","taskStatus":"Done","taskTitle":"Detect in-progress rebase before aborting in Agent","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T02:27:45.377866012Z"}
 {"taskCreatedAt":"2025-11-22T03:01:36.84628158Z","taskDependencies":[],"taskDescription":"Modify Omni/Agent/Worker.hs to check if the task branch already exists before trying to create it. If it exists, simply checkout the branch. This prevents 'fatal: a branch named ... already exists' errors when restarting the worker.","taskId":"t-rWbS8t1Wv","taskNamespace":"Omni/Agent.hs","taskParent":null,"taskPriority":"P2","taskStatus":"Done","taskTitle":"Handle existing task branch in Worker Agent","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T03:02:31.746506652Z"}
 {"taskCreatedAt":"2025-11-22T03:09:54.022974779Z","taskDependencies":[],"taskDescription":"Implement the 2-line status UI described in Omni/Agent/DESIGN.md (Section 4.3). It should reserve 2 lines at the bottom for Meta (Task ID, Time) and Activity (current thought/action), allowing history to scroll above. Use ANSI codes for cursor management.","taskId":"t-rWbSG78jq","taskNamespace":"Omni/Agent/Log.hs","taskParent":null,"taskPriority":"P2","taskStatus":"Done","taskTitle":"Implement 2-line Agent Status UI","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T03:21:54.480763142Z"}
+{"taskCreatedAt":"2025-11-22T03:58:00.9971476Z","taskDependencies":[],"taskDescription":"Update Omni/Agent/Worker.hs to spawn a background thread that tails '_/llm/amp.log' while the Amp agent is running. For each new line in the log: 1. Parse it (it's JSON). 2. Extract a user-friendly summary (e.g. 'Thinking...', 'Tool: Bash'). 3. Update the status bar activity line (AgentLog.updateActivity) with this summary. This provides real-time visibility into what the agent is doing.","taskId":"t-rWbVPuAaZ","taskNamespace":"Omni/Agent/Worker.hs","taskParent":null,"taskPriority":"P2","taskStatus":"Open","taskTitle":"Stream Amp logs to Agent status bar","taskType":"WorkTask","taskUpdatedAt":"2025-11-22T03:58:00.9971476Z"}
diff --git a/Omni/Task.hs b/Omni/Task.hs
index 36b318b..f19ab73 100644
--- a/Omni/Task.hs
+++ b/Omni/Task.hs
@@ -44,7 +44,7 @@ Usage:
   task list [options]
   task ready [--json]
   task show <id> [--json]
-  task update <id> <status> [--json]
+  task update <id> <status> [--deps=<ids>] [--dep-type=<type>] [--json]
   task deps <id> [--json]
   task tree [<id>] [--json]
   task progress <id> [--json]
@@ -214,13 +214,30 @@ move args
   | args `Cli.has` Cli.command "update" = do
       tid <- getArgText args "id"
       statusStr <- getArgText args "status"
+      
+      -- Handle update dependencies
+      (deps, depType) <- do
+        -- Parse --deps and --dep-type
+        ids <- case Cli.getArg args (Cli.longOption "deps") of
+          Nothing -> pure []
+          Just depStr -> pure <| T.splitOn "," (T.pack depStr)
+        dtype <- case Cli.getArg args (Cli.longOption "dep-type") of
+          Nothing -> pure Blocks
+          Just "blocks" -> pure Blocks
+          Just "discovered-from" -> pure DiscoveredFrom
+          Just "parent-child" -> pure ParentChild
+          Just "related" -> pure Related
+          Just other -> panic <| "Invalid dependency type: " <> T.pack other <> ". Use: blocks, discovered-from, parent-child, or related"
+        pure (map (\d -> Dependency {depId = d, depType = dtype}) ids, dtype)
+
       let newStatus = case statusStr of
             "open" -> Open
             "in-progress" -> InProgress
             "review" -> Review
             "done" -> Done
             _ -> panic "Invalid status. Use: open, in-progress, review, or done"
-      updateTaskStatus tid newStatus
+            
+      updateTaskStatus tid newStatus deps
       if isJsonMode args
         then outputSuccess <| "Updated task " <> tid
         else do
diff --git a/Omni/Task/Core.hs b/Omni/Task/Core.hs
index bab1912..9e4d2b4 100644
--- a/Omni/Task/Core.hs
+++ b/Omni/Task/Core.hs
@@ -343,15 +343,15 @@ createTask title taskType parent namespace priority deps description =
     pure task
 
 -- Update task status
-updateTaskStatus :: Text -> Status -> IO ()
-updateTaskStatus tid newStatus =
+updateTaskStatus :: Text -> Status -> [Dependency] -> IO ()
+updateTaskStatus tid newStatus newDeps =
   withTaskWriteLock <| do
     tasks <- loadTasksInternal
     now <- getCurrentTime
     let updatedTasks = map updateIfMatch tasks
         updateIfMatch t =
           if matchesId (taskId t) tid
-            then t {taskStatus = newStatus, taskUpdatedAt = now}
+            then t {taskStatus = newStatus, taskUpdatedAt = now, taskDependencies = if null newDeps then taskDependencies t else newDeps}
             else t
     -- Rewrite the entire file (simple approach for MVP)
     tasksFile <- getTasksFilePath